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During discharging of lead storage batte...

During discharging of lead storage battery, which of the following is/are true?

A

`GH_2SO_4` is produced

B

`H_2O` is consumed

C

`PbSO_4` is formed both electrods

D

Density of electolytic solution decreases

Text Solution

Verified by Experts

The correct Answer is:
C, D
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Knowledge Check

  • During discharging of alead storage battery

    A
    The reaction at anode is `Pb rarr Pb^(2+)+2e^(-)`
    B
    The reaction taking place at cathode is
    `Pb^(2+)+2e^(-) rarr Pb`
    C
    The overall reaction is
    `Pb+PbO_(2)+4H^(o+) +2SO_(4)^(2-) rarr 2PbSO_(4)+2H_(2)O`
    D
    The reaction taking place at cathode is
    `PbO_(2)+4H^(o+)+2e^(-) rarr Pb^(2+)+2H_(2)O`

  • During charging of lead storage cell

    A
    external emf is greater than the emf of cell
    B
    external emf is equal to the emf of cell
    C
    external emf is less than emf of the cell
    D
    none of these

  • In a lead storage battery

    A
    `PbO_(2)` is reduced to `PbSO_(4)` at the cathode.
    B
    Pb is oxidised to `PbSO_4` at the anode.
    C
    Both electrodes are immersed in the same aqueous solution of `H_2 SO_4`.
    D
    All the above are true.

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